Adjustable self-draining cock



(No Model.)

F. G. HAMER. ADJUSTABLE SELPDRAINING 000K.

NO. 577,603. Patented Feb. 23, 1897.

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UNITED STATES PATENT OFFICE.

FRANK G. IIAMER, OF CINCINNATI, OHIO.

ADJUSTABLE SELF-DRAINING COCK.

SPECIFICATION forming part of Letters Patent No. 577,603, dated February 23, 1897. Application filed September 21, 1895. Serial No. 563,841. (No model.)

To all whom it may concern:

Be it known that I, FRANK G. IIAMER, a citizen of the United States, residing at Gincinnati, Hamilton county, State of Ohio, have invented a new and useful Adjustable Self- Draining Cock; and I do declare the followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, attention being called to the accompanying drawings, with the reference-numerals marked thereon, which form a part of this specification.

This invention relates to faucets, cooks, and similar devices controlling the flow and outlet of liquids from pipes.

It relates particularly to cocks and faucets controlling the outlet of water from the service-pipes of waterworks systems where the object is to cause such pipes to vent and drain themselves automatically through said cocks and faucets when for any reason the pressure is shut off from the former. One of the occasions when this contingency arises is in winter when during severe cold spells it becomes desirable to empty the pipe system in order to prevent the Water therein from freezing. This is done by closing a main inlet valve or cook, after which all points of outlet must be opened to permit the water to drain therefrom and from the pipes as well as to admit the necessary air to make such draining possible. Through lack of knowledge or by oversight this latter part of the performance, to wit, the opening of the faucets and cocks at the points of outlet, is frequently not carried out, as a consequence of which more or less Water remains in the pipes and the object to prevent them from freezing is not attained. Therefore the intent of my invention is to construct such outlet and passage controlling devices in a new manner which permits the water from the adjoining pipes to drain through them as soon as the pressure is turned off without requiring them to be opened first for such purpose or for the purpose of admitting the air to produce the necessary venting action. Such action being automatic its performance by hand becomes unnecessary, and being independent in this manner no neglect, with resulting damages, may ensue. At the same time parts of this construction are used for the purpose of regulating the quantity of the water pouring from the outlets, which is of special advantage where the service. is of high pressure which causes the water to splash.

In the following specification is found a full description of my invention, together with its operation, parts, and construction, which latter is also illustrated in the accompanying drawings, in which- Figure 1 is an under side view of my improved faucet. Fig. 2 is a side elevation, partly in section, illustrating particularly the features for regulating the outpour. Fig. 3 shows an under side view of the features illustrated in Fig. 2.

In the drawings, the Valve 8 of the faucet is shown as closed, preventing the water below and back of it from passing out through the open end of the faucet. From the under side of the latter and preferably below the valve extends a nipple 9, screw-threaded exteriorly to receive a cap 10, also screwthreaded for the purpose. In the lower end of the latter is a perforation 11, the space above it being occupied bya ball-valve 12, of suitable material, preferably soft rubber, and slightly and only sufficiently heavier than water to cause it to sink. The inside of the lower end of cap 10 is so shaped as to cause the ball-valve to lie against the inner end of perforation 11, which latter is in the lowest part of cap 10. It is clear that as long as the pressure in the pipes is on, valve 12 is pressed against the inner mouth of perforation 11 with sufficient force to close such opening against the escape of the water. If now for any reason, and particularly for the one first mentioned, it becomes necessary to empty the pipes and the water is shut off by a main. inlet-valve, it is not required to open the faucets and cooks in order to permit air to enter and the water in the pipes above them to drain out, because the shutting off of the pressure permits valve 12 to float upwardly, clear ing opening 11 and permitting air to enter as well as water to escape therethrough.

14 is a screw fitting inside of nipple 9 and the upper end of which, by its position with relation to the valve-seat of Valve 8, determines the quantity of water passing through between the two, from which it follows that Such quarttyb t r y e r ate i y an adjustmntof screw 14 either to or from this Valve-seat. It also forms a guard at the upper end of the valve-chamber, preventing the Valve from leaving the latter. 7 lfhis adjusting feature becomes; especially useful in service with high pressure, when by a reduc- M011 of the pe in ashin rofizthel water may be prevented. Communication between the valve-chamber below and theerrspa eahove gs rewtl t is establi edby;

new I fiavingdescribed Inf invention, I claim as pla ep ndi f he-undersidet a cap 10, adapted to be connected thereto, a perforation 11, in the latter, a valve 12, occupying the interior thereof, which interior forms, the valve-ohamb er therefor and a screw 14, threaded and fittedwithin the interior of nipple 9, acting as a guard to prevent valve l2 fro1n leavingriifi rchamber as well as controlling by'its adjustment the outpour from the cock, said screw out out to permit comm n a ie be w enim pace atitsend Intestimonywhereof I hereunto set my sigo nature in the presence of two witnesses.

FRANK G. HAMER.

Witnesses: 

